Referencia de la Clase QStringBuffer

Diagrama de herencias de QStringBuffer

Lista de todos los miembros.

Métodos públicos
	QStringBuffer (QString *str)
	~QStringBuffer ()
bool	open (int m)
void	close ()
void	flush ()
Offset	size () const
Offset	at () const
bool	at (Offset pos)
Q_LONG	readBlock (char *p, Q_ULONG len)
Q_LONG	writeBlock (const char *p, Q_ULONG len)
int	getch ()
int	putch (int ch)
int	ungetch (int ch)
Atributos protegidos
QString *	s

---

Documentación del constructor y destructor

QStringBuffer::QStringBuffer

(

QString *

str

)

QStringBuffer::~QStringBuffer

(

)

---

Documentación de las funciones miembro

QIODevice::Offset QStringBuffer::at

(

)

const [virtual]

Virtual function that returns the current I/O device position.

This is the position of the data read/write head of the I/O device.

Ver también:

size()

Reimplementado de QIODevice.

bool QStringBuffer::at

(

Offset

pos

)

[virtual]

Virtual function that sets the I/O device position to pos. Returns TRUE if the position was successfully set, i.e. pos is within range and the seek was successful; otherwise returns FALSE.

Ver también:

size()

Reimplementado de QIODevice.

void QStringBuffer::close

(

void

)

[virtual]

Closes the I/O device.

This virtual function must be reimplemented by all subclasses.

Ver también:

open()

Implementa QIODevice.

void QStringBuffer::flush

(

)

[virtual]

Flushes an open I/O device.

This virtual function must be reimplemented by all subclasses.

Implementa QIODevice.

int QStringBuffer::getch

(

)

[virtual]

Reads a single byte/character from the I/O device.

Returns the byte/character read, or -1 if the end of the I/O device has been reached.

This virtual function must be reimplemented by all subclasses.

Ver también:

putch(), ungetch()

Implementa QIODevice.

bool QStringBuffer::open

(

int

mode

)

[virtual]

Opens the I/O device using the specified mode. Returns TRUE if the device was successfully opened; otherwise returns FALSE.

The mode parameter mode must be an OR'ed combination of the following flags. Mode flags Meaning IO_Raw specifies raw (unbuffered) file access. IO_ReadOnly opens a file in read-only mode. IO_WriteOnly opens a file in write-only mode. IO_ReadWrite opens a file in read/write mode. IO_Append sets the file index to the end of the file. IO_Truncate truncates the file. IO_Translate enables carriage returns and linefeed translation for text files under MS-DOS, Windows and Macintosh. On Unix systems this flag has no effect. Use with caution as it will also transform every linefeed written to the file into a CRLF pair. This is likely to corrupt your file if you write write binary data. Cannot be combined with IO_Raw.

This virtual function must be reimplemented by all subclasses.

Ver también:

close()

Implementa QIODevice.

int QStringBuffer::putch

(

int

ch

)

[virtual]

Writes the character ch to the I/O device.

Returns ch, or -1 if an error occurred.

This virtual function must be reimplemented by all subclasses.

Ver también:

getch(), ungetch()

Implementa QIODevice.

Q_LONG QStringBuffer::readBlock	(	char *	data,
		Q_ULONG	maxlen
	)		[virtual]

Reads at most maxlen bytes from the I/O device into data and returns the number of bytes actually read.

This function should return -1 if a fatal error occurs and should return 0 if there are no bytes to read.

The device must be opened for reading, and data must not be 0.

This virtual function must be reimplemented by all subclasses.

Ver también:

writeBlock() isOpen() isReadable()

Implementa QIODevice.

QIODevice::Offset QStringBuffer::size

(

)

const [virtual]

Virtual function that returns the size of the I/O device.

Ver también:

at()

Implementa QIODevice.

int QStringBuffer::ungetch

(

int

ch

)

[virtual]

Puts the character ch back into the I/O device and decrements the index position if it is not zero.

This function is normally called to "undo" a getch() operation.

Returns ch, or -1 if an error occurred.

This virtual function must be reimplemented by all subclasses.

Ver también:

getch(), putch()

Implementa QIODevice.

Q_LONG QStringBuffer::writeBlock	(	const char *	data,
		Q_ULONG	len
	)		[virtual]

Writes len bytes from data to the I/O device and returns the number of bytes actually written.

This function should return -1 if a fatal error occurs.

This virtual function must be reimplemented by all subclasses.

Ver también:

readBlock()

Implementa QIODevice.

---

Documentación de los datos miembro

QString* QStringBuffer::s [protected]

---

La documentación para esta clase fue generada a partir del siguiente fichero:

• src/qt/src/tools/qtextstream.cpp